Have anyone made the arduino nano RP2040 connect work with Ubuntu 20.04? I see that there is a way to get it working with Mbed OS on Ubuntu 20.04 but does it work on arm64? Now i see the Mbed works with C++ but my question is does Mbed OS run a .ino file?
The core library of the "Mbed OS Nano Boards" platform of the Nano RP2040 Connect is based on Mbed OS. So when you follow the standard instructions for getting started with the Nano RP2040 Connect, you are ending up running Mbed OS on your board. You can still use the standard Arduino core API, since Mbed OS API is wrapped in it, or if you like, or you also have the option of using Mbed OS API directly.
Give it a try and let us know if you have any problems.